Wire-working machine.



G. B. SMITH.

WIRE WORKING MACHINE.

APPLICATION FILED FEB. 11. 1908.

Patented May 11, 1909.

6 SHEETS-SHEET 1.

HIIIIIIHIHliillllllllllllllllm zz 14 i G. B. SMITH. WIRE WORKING MACHINE.

APPLICATION FILED PEB. 11. 190s.

921 ,01 6. Patented May 11, 1909.

6 SHEETS-SHEET 2.

@Il V j @afg/. im.

W M, www.

G. B.' SMITH.

WIRE WORKING MACHINE.

APPLIOATION FILED 11:13.11, 190e.

Patented May 11, 1909.

6 BHBETB-SHEBT 3 afg/. .Zz/z,

.luventoza atto: mnfm G. B. SMITH. WIRE WORKING MACHINE.

IIIIIIIIIIIIIIIII EB. 111111 e. Patented May 11,1909. e sHEETg EEEEEE 4.

A llwmwW j G. B. SMITH. WIRE WORKING MACHINE.

,01 6o APPLIOATII'ON FILED 1I`BB.11, 1908. 1l,

6 SHEETS-SHEET 5.

l n umm Gaf 2J/m22. @KM

p /r o WWW ao'rmup G- B- SMIT WIRE WORKING MA El 921,016. APPLI' ooooooooooooooo 1,. 190s. Ptented May 11 1909.

e EEEEEEEEEEEE e.

GARY B. SMITH, OI ANOKA, MINNESOTA.

WIRE-WORKING- MACHINE Specification of Letters Patent.

Patented Mayv 1 1, 1909.

Application led February 11, 1908. Serial No. 415,408.

To all whom it may concern:

Be it known that I, GARY B. SMITH, a citizen of the United States, residing at Anoka, in the county of Anoka and State of Minnesota, have invented a new and useful lVire-Norking Machine, of which the following is a specification.

This invention has reference to improvements in wire working machines, and its object is to provide a machine for the production of a twisted wire rope or cable made up of a number of individual strands laid side by side and formed into helices. The invention consists primarily in a twisting mechanism with a coacting feeding mechanism so related and actuated that the feeding and guiding mechanism retreats from the twisting mechanism while the twisting of the strands into the rope or cable is progressing and then the twisting mechanism releases the completed portion vof the rope or cable upon which it' has acted while the feeding mechanism becomes active to advance the finished portion of the rope or cable out of the twisting zone. This series of operations is-performed automatically so long as power is applied to the machine and the supply of wire holds out.

In accordance with the present invention there \is provided a reciprocating guiding member movable longitudinally upon a suitable mandrel, which latter is capable of rotative `movement, and this guiding membei' receives the desired Vnumber of wire strands coming from suitable sources of supply and directs them to' and around the mandrel. After leaving the guide member the wirestrands are`grasped by a twisting mechanism which tends to form the strands and the helices about the mandrel. The guide member is moved slowly one direction along the mandrel while the wire is being formed into helices by the twisting mechanism, and this direction is away from the twisting .mechanism The s eed of movementof the uide member in t e direction away from t e twisting mechanism determines the degree of twist imparted to the speedto move the already freshly twisted rope or cable out of the twisting zone. AAs soon as the forward movement ofthe guide member has been completed the twisting and proceeds-torotate them upon the mandrel as the uide member recedes at a comparatively s ow speed from the said twisting mechanism. p

The present invention comprises various mechanisms for accomplishing these several operations. The structure of these mechanisms as well as their operation will be best understood from a consideration of the following detail description taken in connection with theaccompanying drawings forming a part of this specification, in which drawmgs- Figure 1 is a side elevation ofthe machine. Fig. 2 is a plan view thereof. Fi 3 is a cross section taken in front of the guide member. Fig. 4 is a detail section through the butt ends of the mandrel and the parts supporting the same. Fig. 5 is a perspective view-of a portion of the guide member. Fig. 5 is a detail view of the underside of a portion ofthe structure shown in Fig. 5. Flg. 6

f is a displayed view of the actuating cam.

Fig. 7 is a cross section through the machine at a point cutting the twisting mechanism.

shown in Figs. 9 and 10, and Fig. 14 is a lan view of the gear at the right hand end o the structure of Fig. 9. p

Referring to the drawings, there is shown a bed plate 1 upon which are cast standards gort of the'several arts of the mechanism. xtendfing longitudinally through the standards and appropriately journaled where needed therein, is a drive shaft 3 to which power may be applied in any ap ropriate manner. At one end the drive-sha t carries mechanlsm again grasps the wire strands a cam 4 ixed to the shaft in proper position 1 Fig. 8 1s a cross section through the machine the twisting mechanism of the structure .y

2 at such points as are necessary for the supby means of a set screw 5, and this cam has a circumferential groove 6 appropriately shaped for the actuation of certaln'mechanism to be described. By reference to Fi 6, it will be seenthatthis groove has a ong gentle slope through the greater portion of its length, as shown at 7, and for the remainder of the length a return portion 8 of much greater pitch. The purpose of the cam groove and its shapewill appear farther on.

The bed-plate 1, near the cam is formed with elevated guideways 9 in which there slides a carriage 10 shown in the drawings as of gpneral rectangular shape. 'This carriage 10 as fast or formed thereon an upright ear .11 through which there extends a rod 12 threaded at its point of passage through the year and receiving on itsthreaded end two nuts 13, one on each side of the ear, and serving to clamp the rod to the ear in differositions of adjustment, the pitch of whic threaded portion. The other end of this rod is extended through one of the uprights 2 and is guided thereby. At a oint between the ear 11 and the'upright 2 t rough which therod extends, there is secured to the rod a block 14 by means of a set screw 15so that the relation of the block to the rod may be ixed at will. The lowerl end ofk this block carries a roller 16 adapted to the carn/y groove 6. When the cam 4 is rotated a reciproca* tory movement is imparted to the carriage 10 and the relative speed and time of reciprocation is determined by the shape of the groove 6. In the particular construction shown the movement of the carriage toward the cam' is p ro ressive forabout three quarters of a revo ution of the cam and the return movement-is effected by one quarter of the revolution of the cam. This is taken as sim ly illustrative and may be varied as slightlyinset in an appropriate manner 1n the u per face of the carriage. This block is hel in placeby. a 'screw or bolt 18, and

about midway of its length is formed with an upward projection 19 the face of which is coincident lwith the front end of the block.

Extending horizontally fro'm'this front face.:

is a lip 20 above and below which Ithe block is laterally recessed, as shown at 21. 'Extending longitudinally through the lip 20 and the portion 19 of the block 17. is a bore 22 countersunk at the free end of the lip for a distance, as indicated at 23. ExtendingV diagonally from the counterbore' to one side of the lip close 'to the corresponding recess- 21 4above the lip is a groove'24, and there is a similar groove 25 on the'underside 4of the is determiner by the. length of thelip extending in the opposite direction. Underriding the lip 20 and provided with a tongue 26 enterlngthe recess 21 under the lip, is a block 27 made fast to the block 17 by a screw 28-or otherwise. Secured to the projection 19 by a screw 29 is another block 30 overriding the lip 20 and projecting horizontally to a point coincident with the free end of the block 27 leaving a space between the underside of the block 30 and the upper 'face of the block 27. v

At the end of the guide frame 9 remote from the cam 4 on one side ofthe guideways, is a pair of upwardly-projecting ears 31, and on one of the posts or uprights 2 spaced at a distance from the end of the frame 9 carrying the ears 31 are other ears 32. Between each air of ears 31 and 32 is pivoted one end ci) an arm 33, there being two such arms, andthe free ends of these arms are slotted, as shown at 34. About midway of the length of the arms 33 are formed journal bearings for a roller 35, and in the upper portion of the standards 2 carrying the ears 31 and 32 are formed journal bearings for two rollers 36-36, the journal bearings for the vrollers 35 and 36 including an equilateral triangle with the bearings at the angles, and with the bearings of the two rollers 36 in! eluded in the base of the triangle. The roller 35 is flattened on one side, as indicated at 37, for a purpose which will presently ap ear.

ournaled 'in the posts or standards 2 which carry the arms 33 is a rock-shaft 3S flattened at appropriate points and bored near each end to receive rods 39, which are threaded where they pass through the shaft 38 and there receive nuts 40 on each side of the shaft bearing against the ilattened portion. Each rod 39 has fast at its other end a block 41 in which is formed a bearing for a rock-shaft 42 carrying a manipulating handl 43 and having at the ends projecting pins 44 eccentric to the axis of the shaft. These pins are of such size as to readily enter the slots 34 and on the turning of the shaft 42 by the handle 43 the ins 44 will move into the slots and cause t e arms 33 to be drawn downward and carry the roller 35 toward the rollers 36, and an structure lodged between these'rollers w' be subjected to such pressure as ma be determined by the position of the hand e 43. Each arm 33 at the outer free end is provided with perforations for t e passage of a pin 45 actlng as a lock for t e eccentric extensions 44 of the rock-shaft 42 when introduced into the slots sions are connected by universal dints 47 to one end of links 48, the other ends of which are connected by universal joints 49 to corhaving a centr responding shafts 50. journaled in two posts 2 at .the vend ofthe machine remote from the cam 4. The shafts 50 are spaced apart and equidistantly disposed aboutv another -shaft 51 provided with an axial passage 52 and in turn journaled in the end posts 2. Because of the introduction of the shaft 51 the other shafts 5() are spaced apart to a greater extent thanar'e the rollers 35 and 36 and their journals. Consequently, the links 48 are divergent to connect to the shafts 50. Upon the shaft 51 is a gear wheel 53 meshing with a pinion 54 'upon each shaft 50; and also with a pinion 55 upon the shaft 3.

Theshaft 51 may be extended to a suincient extent beyond the standard 2, at the corresponding end of the machine, to receive a drive pulley by means of which power is applied to the structure. However, the drive pulley is not shown'a'nd the capability of the shaft 51 for thereception of the drive pulley is indicated in the drawings by this shaft being broken away. Assuming that power is applied to the shaft 51 in the proper direction, then rotative movement is irn- .parted to the shafts 50 and ultiinatel to the rollers 35 and 36, at the same time t e shaft 3 receives rotative movement through the pinion 55, and this movement is imparted to the cam 4, it being understood that the several gears-are properly proportioned to cause the rotative movementsfof. the shaftsin the proper timed relation.

Mounted upon the guideways or supports 9 adjacent to the cam 4 is a sleeve 56 through which there is assed a cylindrical block 57 albore 58 enlarged at one end, as shown at 59, and there threadedfor the reception of a set screw 60. The block 57 at its enlarged end is expanded into a head 61 of approximately the size of the end of the s eeve 56, and the meetin faces of this head and sleeve are formed Wit ball races for the reception of a circular series of anti-friction balls 62. The other end of the block 57 is threaded for the reception of a nut 63 which, as well as the correspondin end of Vthe sleeve 56 is formed with a bal race for the reception of a series of anti-friction balls 64. The nut 63 co-actinwith the head 61 serves to maintain the bloc 57 within the collar 56, while the anti-friction balls act as journal bearings for the block and permititsrotation with r'aotically no friction. The threaded end ol) the block 57 also receives a lock-nut 65 to prevent the accidental displacement of the nut 63. The block 57 receives the butt end of a mandrel 66 through the bore 58 and this end of the mandrel has a vsmall ortion of itsle'n h returned on itself, as in icatedat 67, an this returned end is seated in the e'nlarg'ed portion 59 of the bore 58 and is there held b.` the set screw 60. lThe mandrel 66 is of suc length as to 'extend throingh the reciprocating feed member and also through Aneart'he termination of the twist.

the space inclosed by the rollers 35 and 36 up to a point where the diameters of these rollers is enlarged, as indicated at 68.

In order that the rod 12 connecting the carriage 10 to the block 14 engaged by the cam 4 may be held against turning on the longitudinal axis, it may be provided with a keyway 69 at the threaded end engaged. byl

the nuts 13, and after these nuts are screwed to the desired position, a key may be inserted in the keyWay and engage appropriate keyways in the nuts and ear 11 to lock the parts altogether against accidental displacement.

On each side of the machine at appropriate points are arranged holders 70 for the wire,

the strands of which are indicated at 71. l

der these conditions the machine is operating.

The reciprocatin feed block is moved by the cam toward the atter at the same time that the rollers 35 and 36 are rotated in a direction to windthe wire strands about the mandrel, the latter rotating with these strands because it is free to do so since the block 57 is 'readily rotatable in the sleeve 56, thesaid rollers engaging the wire strands with a ressure depending upon the position of the andle 43. The resultis that the strands are twisted into a helix about the mandrel as the feed block retreats, and the Wires are drawn through the grooves 24 and 25 and are directed thereby to the mandrel and about the same. This movement is a `comparatively slow one so that there may be time to twist the wire strands about the mandrel. The movement of the block- 1() being com leted,

that six wire strands are used, then eac strand 1s wound the direction of movement of the sai block is reversed by the portion 8 of the cam groove, and this portion being much steeper than the rest o f the cam. groove, actuates the block 10 toward the rollers 35 and 3 6 at a comparatively high speed in order that the already twisted wire strands may be moved forward so that the rollerscan again grip the 'trands o permit the uick forward movement of the already twisted strands is the urposeof the cutaway portion 37 of the ro er 35, and the rotation of the roller 35 is so timed that this out away'portion is brought into coincidence With the twisted strands and remains in coincidencewith these twisted strands during the forward movement of the feedin block. Wlren the block 10 has reached the l(limit of its forward movement, then the roller 35 has rotated such a distance as is necessary to bring its circular periphery again into engagement with the twisted strands and so shape by the action of the rolls 35 and 36.

'pressure upon t When the twisted wire has passed off the mandrel it is brought into coincidence with the enlarged portions 68 of the rollers 35 and 36, and consequently this portion of the helices is subjected to a compressing action by the rolls, whereby its diameter is decreased and the tendency of the helices to expand after leaving the mandrel and after being relieved from the pressure of the rollers 35 and 36 is counteracted.

With the structure thus far described the twisting of the strands occu ies about three periods of time to one perio of time applied in the movement. of the already twlsted strands beyond the action of the rollers 35 and 36. There is advantage7 however, in having the time relation between the twisting of the strands and the movement of the already twisted strands to brin new sections of the wire into action more isproportionate, and in Figs. 9 to 14 is illustrated a form of operating mechanism whereby the retreatin movement of the block 10 to its forwar movement is such that the retreating movementy takes about seven times aslong as the forward movement.- Also the .structure` of these figures takes less floor space than that of the structure of Figs. 1 and 2. In this structure, the rollers 35 and 36 have no end journals, and the roller 35 has its periphery continuous instead of being provided with a flattened portion. These three rollers 35 and 36 are confined within a circular series of rollers 72, and one of these rollers engaging the roller 35 has itsperi hery cut away, as indicated at 73, so that `or a portion of the time of its revolution, say one-eighth, it will not engage'the roller 35, and the latter may move away from the wire upon the mandrel or at least so relieve the ressure thereon as not to interfere with the ongitudinal move ment of the wire during the forward movement of the block 110. In order to drive these several rollers'72, their shafts 74 are extended beyond the end post 2 and there carry pinions 75. Certain of the shafts 74 are journaled in the arms 33 so that the roller 35 may be broulght to bear'wijth graduated e wire on the mandrel, or this roller may be rendered accessible so as to pie elevated out of place when the machine is rst strands into the twisting rolls. These pinions 75 are arranged in two series so that the ut into operation to start the wire alternate pistons are in dierent planes, that is, considering six rollers and six pinions, three of the pinions are equidistantly spaced and are in one plane, and the alternate pinions, thiee in number, are equidistantly spaced and in another lane. The drive shaft 51 is suitably journa ed in the end post 2 and carries a pinion 76 of sufficient length to engage all the pinions 75 and impart rotative movement thereto. The several pinions 75 are immediately adjacent to the corresponding post 2 carrying the ears 32, so that t ie machine is shortened by the omission of the parts of the structure of Fig. 1 beyond this particular post. Journaled upon a stud 77 projecting from thc post or standard 2 under consideration, is a gear wheel 78 meshin with one of the pinions 75. This gear whee acts simply as an idler and transmits power to the pinion 79 on one end of a shaft 80 extending through the standard 2 toward the other end of the machine and is provided with another journal bearing 81 fast on an appropriate part of the machine beneath the wire twisting structures. The shaft carries two bevel pinions 82 and 83 of different diameters. Formed in the base of the machine above the portion through which the shaft 80 extends, 1s a hollow stud 84 forming a journal bearing for a short upright shaft 85 having its lower end extendin into the space in thebase below the twisting mechanism and there carrying a crown bevel Gear 86 and a bevel pinion 87 central of sai crown gear. At the upper end of the shaft 85 is a crank disk 88 connected by a pitman 89'to a in 90 on the under side of the block 10.

he bevel' gear wheel 82 is best shown in Fig. 12 where it will be seen that this gear is a mutilated gear with the teeth omitted through a segment 91 occupying about oneeighth of the circumference of the gear. It will also be seen that the gear wheel 83 is a mutilated gear havingfteeth lthrough only about one-eighth of its circumference, as indicated at 92.

The crown gear 86 and pinion 87 are best shown in Fig. 11, where it can be seen that the gear wheel 86 is` a mutilated gear having teeth through one-half its circumference, as indicated at 93, while the pinion 87 is a Amutilated pinion having teeth through but one-half its circumference, as indicated at 94. The blank space 91 of the gear wheel 82 is arranged in coincidence with the toothed ortion 92 of the'gear wheel 83, and the toot led portions 93 and 94 of the gear wheel 86 and `pinion 87 are similarly arranged. When the shaft 80 is rotated the gear-wheel 82 will impart to the crown ear 86 va half rotation through a'time perio equal to seven-eighths of the rotation of the shaft 80 and' the gear wheel 83 will impart to the pinion 87 a half r0- tation during the remainin one-ei hth of the rotation of the shaft 80. he resu t of this is 45 necessity limitedv toy the exact structures that the block or carriage .10 is moved slowly in one direction until its travel is completed and then quickly in the other direction through the same length of travel, thereby accomplishing th same purpose as the dii"- ferent members ofe the cam groove ofthe-cam '4 of the structure of Fig. 1. It is to be ob- *muchless than the floor space of the structure of Fig. 1. Furthermore, the structure of. Fig. 9 presents the advantage of quicker return movement when the winding mechanism is inactive than does the structure of Fig. 1,

,l while the active Winding movement is prolonged in relation to the return movement. In order to provide for the enlarged portions 68 of the ro 1ers 3,5 `and 36, the periphery of each roll 72 is reduced, as shown at 95.

The twisted wire ropes or cables produced by the machine forming the subject-matter of. this invention are dparticularl .useful for the production of be bottoms ecause the ropes or cables are compact, and strong and sufficiently elastic so as to yield under the weight of the occupant o f the bed and return to their normal length when relieved from.

the weight. The elasticityis such that these bed bottoms replace wire spring mattressesA and because ofthe compact nature of the "ropes or cables the may be kept clean and are in fact not at a liable to accumulate dirt or other deleterious matter.

'ln the foregoing descri tion it has been assumed that six strands o wire were used for cable, but it will be understood that a greater or less number maybe used, as desired, and the time relation yofl the movement of the parts will be made to agree to the number of Wire strands used. Furthermore,- it is to be understood that the invention is not of shown and described, but these structures may be modified in various ways and their relations may be changed' so long as the principles of the invention are retained.

In order toprevent lubricating oil from reaching the worldng faces of the rollers-36 in the structureel Fi 1, these rollers are reduced in diameter for a distance back/ from their journals', as shown. In the structures shown in Figs. 9 to 14, the lubricating oil cannot reach the rollers'35 and 36 because these rollers have no journals at all-but are carried by other rollers 72.

What is claimedisz` 1. In a machine for making ropes or cables of a number of wire strands, means for twistlocking helices, with relation to the twisting means, and acing the strands' simultaneously into inter-l a guiding -means movable strands, for the guiding means, timed movement to determine the pitch .of the helices:

2. In a machine for forming wire ropes or cables of wire strands, a means for twisting a number of wire strands into helices with ltuating means, other l than the twisted their coils contacting, means other than-the and progressively in the helices with theirv coils adjacent, 'a mandrel about which rthe wire strands are twisted into helices, and

means coacting with the twisting means for ,L

compacting the helices after' being formed.

l 4. In a machine for forming wire ropes or cables from a number of wire strands, a means for forming a number of strands l ing side by side into helices with adjacent coils, a mandrel about which the wire strands are -formed into'helices, va means for guiding the wire strands to the mandrel, and means other than the twisted strands for moving the guiding member away from the twistingmeans at a predetermined rate of sipeed to .determine the lpitch of the turns of the hehces.

5. In a machine for formin a number of i .wire strands into aro e or ca le, a suitable mandrel, means for irecting a number of strands side by side to the mandrel, a twisting means for the wire strands for forming them into helices about the mandrel, means for moving the guiding means away from'the twisting means at a rate of speed and for a time period dependin upon the deslredpitch of the helices, means or moving the dlrecting means toward the twisting means at a more rapid rate of speed than away therefrom, and means for rendering the twisting means 1nactive and for releasing the twisted strands therefrom during the said more rapid movement ofthe strand-directing means.

6. In a machine for twisting a number of wire strands' lyin side by side into a rope or cable, a mandre or receiving the strands while being twisted, d twisting rolls engaging the strands about the mandrel and provided-with sections of greater diameter beyond the end of the` mandrel.

7. A machine for windin a number of wire strands into a rope or cab e, com rising an interconnected series of winding rof* a mandrelcentral to the rolls, agreciprocating ing blockprovided with a passage fo'r the mandrel and 'having an enlargedk opening surrounding the mandrel with .guide grooves leading to the enlarged opening, means for ing the mandrel and provided with sections ofgreater diameter beyond the end of the mandrel for compacting the twisted wires after leaving the mandrel.

9. In'a machine for twisting a number of strands foijwireinto a rope or cable, aguide bloclr provided with a through passage having one endenlarged, the enlarged end of the passage being formed in a projecting lip on y the block, and said lip having guiding grooves leading to the enlargement of the passage in the lip, and other blocks forming a continuation of the main block and arranged both above and below the lip.

10. In a machine for making ropes or cables of a number of Wire strands, means for twisting the strands simultaneously into interlocking helices, a guiding means for the wire strands, movable with relation to the twisting means, and means yfor moving the guiding means away from the twisting means at a rate of speed and for a time eriod depending upon the desired pitch of t e helices and for moving the guiding means toward the twisting means at a more rapid rate of speed than away therefrom. v

11. In a machine for forming a number of wire strands into a rope or cable, a mandrel about which the strands are twisted, a supporting bloclv for the butt end of the mandrel formed at one end with a head and at the other end provided with screw-threads, a collar receiving said block, journal bearings between the block and collar, and means for i .holding the block to the collar.

12. In arriachine forforming wire ropes or cables from a number of wire strands, a mandrel about which the strands are wound, said mandrel having one end bent upon itself, a block receiving the butt end oi the mandrel and having a receptacle for the bent-over end of the mandrel, means for closing the rece tacle to confine the mandrel to the bloc and anti-friction bearings for the block and constitutin a support for the mandrel about which the atter 1s free to be turned on a longitudinal axis;

13. In a machine for forming wire ropesor cables from a number oi wire strands, twistingrolls for forming lthe strands into helices,

and means for locking the rolls to the strand with desired pressure com rising arms pivoted at one end and a lato mechanism for the other ends of the arms comprising'a rockshaft movable about pivotal supports to and from the arms, and eccentric pms carried by the rock-shaft and movable into engagement with the arms to elevate or depress the latter.

14. In a machine for forming wire ropes or cables from a number of wire strands, a twisting means for the strands, a guiding means for the strands movable to and from the twisting means, and means for moving the guiding means away i'rom the twisting means during a longer time interval than is occupied by the return movement of the guidingmeans l toward the twisting means.

15. In a machine for forming wire ropes or cables from a number of wire strands, a

'twisting means for the strands, a guiding' means for the strands movable to and from the twisting means, aiid positive connections between the power side oi the machine and said guiding means for actu ating said guiding means in both directions irrespective of the twisted strands.

16. In a machine for forming wire ropes or cables from a number of wire strands, a twisting means for the strands, a guiding' means for the strands movable to and from the twisting means, and positive` connections between the power side of the machine and said guiding means, timedto more the guiding means toward the twisting` means with greater speed than away therefrom.

17. .In a machine for forming wire ropes or cables from a number of wire strands, a twisting means for the strands, a guiding block for the strands movable to and from the twisting means, and means for positively actuating the guiding means in each direction comprising a rotatable shaft, crank and pitman connections between said shaft and guiding block, and mutilated gear connections between the power side of the machine and said shaft, timed to impart to said shaft different speeds of rotation during different periods of rotative movement.

18. Ina machine for forming wire ropes or cables from wire strands, a twisting means for the strands comprising a circular series of rolls, means for rotating said rolls continuously, and means for relieving the strands from the active enga ement of the rolls at predetermined interva s.

In testimony that I claim the foregoing as my own, I have hereto affixed my'signature in the presence of two witnesses.

' GARY B, SMITH.

Witnesses:

HATTIE C. SMITH, J. H. NILEs. 

